<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="../react18/react.development.js"></script>
    <script src="../react18/react-dom.development.js"></script>
    <script src="../react18/babel.min.js"></script>
</head>
    <div id="app"></div>
    <script type="text/babel">
        function Parent(){
            return <h2>我是你爸爸</h2>
        }

        function Child() {
            return <h3>我是你儿子</h3>
        }

        //根组件
        function App() {
            return(
                <div>
                   <h1>我是你爷爷</h1> 
                   <hr />
                   <Parent />
                   <hr />
                   <Child />
                </div>
            )
        }

        const root = ReactDOM.createRoot(document.getElementById("app"))
        root.render(<App />)

    </script>
<body>

</body>

</html>